diff --git a/lib/ace/keyboard/textinput.js b/lib/ace/keyboard/textinput.js
index 802b9236..f0830e71 100644
--- a/lib/ace/keyboard/textinput.js
+++ b/lib/ace/keyboard/textinput.js
@@ -51,7 +51,7 @@ var TextInput = function(parentNode, host) {
     text.autocapitalize = "off";
     text.spellcheck = false;
 
-    text.style.bottom = "2000em";
+    text.style.opacity = "0";
     parentNode.insertBefore(text, parentNode.firstChild);
 
     var PLACEHOLDER = "\x01\x01";
@@ -372,10 +372,13 @@ var TextInput = function(parentNode, host) {
     var onCompositionUpdate = function() {
         // console.log("onCompositionUpdate", inComposition && JSON.stringify(text.value))
         if (!inComposition) return;
-        host.onCompositionUpdate(text.value);
+        var val = text.value.replace(/\x01/g, "");
+        if (inComposition.lastValue === val) return;
+        
+        host.onCompositionUpdate(val);
         if (inComposition.lastValue)
             host.undo();
-        inComposition.lastValue = text.value.replace(/\x01/g, "")
+        inComposition.lastValue = val;
         if (inComposition.lastValue) {
             var r = host.selection.getRange();
             host.insert(inComposition.lastValue);
@@ -424,7 +427,12 @@ var TextInput = function(parentNode, host) {
     var syncComposition = lang.delayedCall(onCompositionUpdate, 50);
 
     event.addListener(text, "compositionstart", onCompositionStart);
-    event.addListener(text, useragent.isGecko ? "text" : "keyup", function(){syncComposition.schedule()});
+    if (useragent.isGecko) {
+        event.addListener(text, "text", function(){syncComposition.schedule()});
+    } else {
+        event.addListener(text, "keyup", function(){syncComposition.schedule()});
+        event.addListener(text, "keydown", function(){syncComposition.schedule()});
+    }
     event.addListener(text, "compositionend", onCompositionEnd);
 
     this.getElement = function() {